It is important to examine the limbus, the junction between the conjunctiva and cornea. A number of normal structures may be visible here including the normal blood vessel loops, nerves entering the cornea, neovascularization, Palisades of Vogt, Posterior Embryotoxon, and pigmentation.
The blood vessels may be better
visualized with a green filter (red free filter). Here are 2 photos, one with the filter and one without.
